Closure-locking means.



G. J. LJUNGGREN. CLOSURE LOCKING MEANS.

APPLICATION FILED MAR. 21, 1910.

Patented Nov. 15, 1910.

3 SHBETSSHBET 1.

WITNEEEEE 3 SHEETS-SHEET. 2.

G J LJUNGGREN CLOSURE LOOKING MEANS. I APPLICATION FILED MAR. 21, 1910.

1 Patented Nov. 15, 1910.

INVEN'TEJR.

WITNESEES Patented Nov. 15, 1910.

3 SHEETSSHEET 3.

WITNESSES.

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CLOSURE-LOCKING MEANS.

Specification of Letters Patent.

Patented Nov. 15, 1910.

Application filed March 21, 1910. Serial No. 550,593.

To all whom it may concern:

Be it known that I, CARL J. LJUNGGREN, a subject of the King of Sweden,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in Closure-Locking Means, of which the following is a specification.

My invention relates to closure locking means for use in such structuresas vault doors, gun breeches, port holes, and man holes, and itsessential objects are to enhance the resistive power of the partsagainst explosive or other pressure, to distribute the pressure, toinsure against play of the parts, to facilitate the seating of the same,and to compensate for the wear thereof, also to effect these ends in aninexpensive structure comprising a minimum of parts and without theemployment of screw threads which have been found weak under suddenstress, disposed to accumulate adhesions, expensive to form, andinaccessible for cleaning.

My invention consists in constructing the interengaging closure andstationary members with smooth solid peripheral members arranged tofurnish a maximum bearing area and comprising graduations in threedirections.

My invention further consists in the construction, combination, and modeof operation of the parts set forth in and falling within the scope ofthe claims hereto appended.

In the accompanying drawings which form a part of this specification,Figures 1 and 2 are rear end and side elevations respectively of aclosure member embodying my invention, Fig. 3, rear end view of thereceiving orifice, Fig. 4:, a section of the same on line 1, 1, of Fig.3, Fig. 5, a rear elevation of the closure member in engaged positionwithin the orifice of the stationary member, Fig. 6, a section on line2, 2, of Fig. 5 showing the closure in side elevation, Figs. 7 and 8,rear and side elevations of a modified form of closure member, Figs. 9and 10, similar elevations respectively of another modification of thesame, Figs. 11 and 12 like elevations of still another modification,

Figs. 13 and 14, similar views of a fourth modified form of closuremember, Fig. 15, a rear end view of an orifice adapted to receive thelast form of closure member, Fig. 16, a section of orifice on line 3 3of Fig. 15, and

Figs. 17 and 18, rear end and side elevations respectively of a fifthmodified form of closure member.

Like characters of reference indicate like parts throughout the views.

My invention com rises a plug, door, block, or closure mem er A adaptedto cooperate with a breech or jamb B. The mechanism for supporting,inserting, rotating and withdrawing the member A forms no part of thepresent invention, is well known in the art, and is therefore notillustrated herein.

In the construction shown in Figs. 1 to 6 inclusive the member or body Ais preferably cylindrical in general outline and, in the form thereofshown in Fig. 1, has a segment G comprising transversely graduatedstepped portions D, E, F, Gr, and H which in turn are longitudinallygraduated forming stepped portions whose peripheries areindicatedasD,I,J; E,I,J; F,I,J; G,I,J; and H, I. The end faces K, L, Mof the radially graduated stepped portions are in difierent radialplanes and are disposed diagonally relatively to the axis of the body.The peripheral faces of the stepped portions are longitudinally parallelwith the axis of the closure body, and the side faces N, O, of thestepped portions, which face endwise of the member are in verticalplanes and helically disposed or pitched.

The stationary member in this instance is a collar B fixed to the wall Qin any desired manner and incloses an orifice R. Within this orifice andtransversely thereof the member B has an annular series of pitchedchannels S, S S S and S of gradually lessening radii around the orificeforming radial end abutments T. Arranged longitudinally of the orificeare one or more series of similar channels U, U U U and U and V, V V Vand V of gradually lessening radii endwise of the orifice, whoserespective end abutments T and T are also radial. The abutments T, T,and T are diagonally disposed lengthwise of the orifice. Thelongitudinally stepped relation of the channels S, U, V, and S U V etc.form side abutments X, X, facing endwise of the member, and which, asheretofore suggested, are pitched. The peripheral surfaces of all thechannels are horizontall disposed.

Y represents the usual 0 earance slot or opening of the orifice adaptedto admit the 'to left as shown in Fig. 6. The member A is then turned inthe direction opposite the hands of a clock bringing the portions D, I,J, into the channeled portions S, U, V,

. etc. untilthe shoulders K, L, M, contact with the faces T, T, and Tand the pitched endwise facing side surfaces or shoulders N, 0, comeinto frictional contact with the abutments X, X. The shoulder formed bythe advanced face of the segment C abuts against the internal end face Zof the member B.

It will be observed that the steps and abutments have extended bearingareas; that the pitched character of the side abutting faces guide theparts to their seats and afford compensation for wear and that thediagonally arranged shouldersK, L, M, serve also to distribute thestrain and strengthen the whole device. In shortthere is a graduation ofthe parts in three directions.

In the modification shown in Figs. 7 and 8 the segment G and itsconstituent parts are of less annular extent, and this segment issupplemented by a second segment C similar in all details with thesegment C, but with the corresponding parts located at diametricallyopposite points upon the periphery of the body A. a

The form of closure shown in Figs. 9 and 10 is similar to that of Fig. 1except that the end faces K L M of the radially graduated annularportions are inclined.

. The closure of Figs. 11 and 12 differs from that of Fig. 9 in that thesegment is of less annular length, and in that the body A has an oposite similar segment C.

In *igs. 13 and 14 is shown a closure member which differs from Fig. 1in that the peripheral faces of all the stepped portions, namely I), E,F, G, I, and J are inclined toward the axis of the closure body orlengthwise thereof. It further differs from Fig. 1 in that the end facesK L M are obliquely inclined. The stationary member for this body, asshown in Figs. 15 and 16, differs from that shown in Figs. 3 and 4t inthat the peripheral faces of all the channels S U and V are inclinedlengthwise of the orifice; and in that the faces of the abutments T, T,and T are obliquely inclined.

The modified form shown in Figs. 17 and 18 differs from that lastdescribed in that the segment C is shortened and an opposite segment Cis added.

One of the possibilities of the treble graduations is shown in thestructures disclosed in Figs. 13 to 18 inclusive wherein the abuttingfaces have an inclination in three direc' tions which still furtherdistributes the stress or strain upon the complementary members.

1. In a device of the type set forth, the combination with thestationary member, of a closure body, and a segment upon the bodycomprisingstepped portions, said stepped portions being graduatedradially, longitudinally, and diagonally.

2. In a device of the type set forth, the combination with thestationary member, of

a closure body, and a segment upon the body comprising a plurality ofradially graduated portions disposed in diagonal series, the graduatedportions being of gradually lessening radii longitudinally of the body.

8. In a device of the type set forth, the

combination with the stationary member, of V .of the body and pitchedwith relation thereto, the end faces of the diagonal series be ingcircumferentially inclined. 5. In a device of the type set forth, thecombination with the stationary member, of a closure body, and a segmentupon the body comprising a plurality of radially graduated portionsdisposed in diagonal series, said portions being also graduatedlongitudinally of the body and pitched with relation thereto andprovided with peripheral faces inclined toward the axis of the body, theend faces of the diagonal series being diagonally inclined. 6. In adevice of the type set forth, the combination of a hollow stationarymember provided with annular series of channels in stepped relation toeach other both radially and longitudinally, the lengths of the radialportions being relatively graduated to form abutments diagonallydisposed longitudinally of the member, and a closure member within thestationary member provided with radially, longitudinally, and diagonallygraduated portions adapted to register in the graduated channels.

7. In a device of the type set forth, the combination with a hollowstationary member provided with annular series of channels in steppedrelation to each other both radially and longitudinally, the bottomsurfaces of the channels being inclined, and the lengths of the radialportions being relatively graduated to form abutments diagonallydisposed longitudinally of the member, i comprising a plurality ofradially graduated said abutments being each diagonally ini portions,said portions being also graduated clined, and a closure member withinthe l longitudinally of the body and pitched with 15 stationary memberprovi longitudinally and diagonally portions adapted ,to register in thechannels, and provided with inclined faces adapted to I ded withradially I relation thereto and provided with periphgraduated l eralfaces inclined toward the axis of the body.

In testimony whereof I have affixed my cooperate with the inclinedsurfaces of the 1 signature in presence of two Witnesses.

channels and of the abutments.

8. In a device of the type set forth, the combination with thestationary member, of a closure body, and a segment upon the body CARLJ. LJUNGGREN. lVitnesses:

HORATIO E. BELLoWs, WALTER LoUIs Fnos'r.

